tidy up the wilson benchmark and add environment script

Quda/env.sh

@@ -0,0 +1,20 @@
+module load gcc/9.3.0
+module load cuda/11.4.1
+module load openmpi/4.1.1-cuda11.4
+
+export OMP_NUM_THREADS=4
+export OMPI_MCA_btl=^uct,openib
+export OMPI_MCA_pml=ucx # by fabian. no idea what this is
+#export UCX_TLS=rc,rc_x,sm,cuda_copy,cuda_ipc,gdr_copy
+export UCX_TLS=gdr_copy,rc,rc_x,sm,cuda_copy,cuda_ipc
+export UCX_RNDV_THRESH=16384
+export UCX_RNDV_SCHEME=put_zcopy
+export UCX_IB_GPU_DIRECT_RDMA=yes
+export UCX_MEMTYPE_CACHE=n
+
+export OMPI_MCA_io=romio321
+export OMPI_MCA_btl_openib_allow_ib=true
+export OMPI_MCA_btl_openib_device_type=infiniband
+export OMPI_MCA_btl_openib_if_exclude=mlx5_1,mlx5_2,mlx5_3
+
+export QUDA_REORDER_LOCATION=GPU # this is the default anyway